395273844 has 120 divisors (see below), whose sum is σ = 1186613120. Its totient is φ = 112394304.

The previous prime is 395273819. The next prime is 395273867. The reversal of 395273844 is 448372593.

It is a self number, because there is not a number n which added to its sum of digits gives 395273844.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 900177 + ... + 900615.

Almost surely, 2^395273844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395273844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593306560).

395273844 is an abundant number, since it is smaller than the sum of its proper divisors (791339276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395273844 is a wasteful number, since it uses less digits than its factorization.

395273844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 848 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 395273844 is about 19881.4950142086. The cubic root of 395273844 is about 733.8929105497.

The spelling of 395273844 in words is "three hundred ninety-five million, two hundred seventy-three thousand, eight hundred forty-four".